Protect sound siding with a scrap piece of 1 4 in.
Fixing plywood siding.
Apply the solution to the damaged plywood siding.
How to repair plywood step 1.
Follow the instructions that come with a bottle of wood cleaner and mix a batch following the ingredients.
You will need paint or stain that is an exact match so test your replacement finish somewhere on the siding where it will not show.
Sunlight and moisture can damage the surface of the plywood siding causing cracks and warping.
Repair is easy but the trick is to match the finish on the patched area.
Cut out patches for holes from identical thickness plywood using the coping saw.
Step 1 remove damaged plywood.
Cut off the blister or peel it.
Cut out the patch border.
When plywood siding ages it s often easiest to replace entire panels.
Cut off blistered or peeled laminates from the main board using the router.
Brush clean all cut and sanded.
After you remove the rotted courses use a small hacksaw to cut any protruding nail shanks or if you have a very strong grip use a good pair of wire cutters.
Fixing the sun damage is easy to do and can be done with wood cleaner scrubbing and sandpaper.
To do this locate the seams around the 4 by 8 foot piece of plywood siding that are filled with caulk or silicone sealant.
Brands may vary so follow the instructions on the bottle.